7 Gliders get ready for the weekend

The deployed fleet has grown to 7 gliders.  There are 5 in the Middle Atlantic Bight on a coordinated model-directed coastal mission, plus Drake & Scarlet on Trans-Atlantic missions.  All three regions look relatively cloud free today.


The Mid Atlantic is a glider party, Jersey style.  Somewhere in all that traffic is the new UDel glider, the Blue Hen. Check out the Middle Atlantic Bight blog for an update from Oscar.



Drake is doing fine heading east along the 26.5 N line. I like how it used the eddy between 53W-55W to make the turn into the eastward line.  Its amazing how the surface currents from the altimeter line up with the depth averaged currents from a glider undulating between the surface and 1200 m.  Drake is just now starting to encounter the northward currents from the clockwise eddy centered near 51 W.  Drake has an excellent weekend ahead of him.  Can't wait to see how he does.



It looks like Scarlet has made it past that small current to the NE  that threatened to whip her around in a tight circle back to the west.  Last night shifted the waypoint just a bit to the south to help ensure that this would be the morning outcome.  Today at the 11 am surfacing we'll go back to an easterly course.  Currents where within only a few degrees of Scarlet's course last night, so we got a good read on her speed.  Scarlet's current speed relative to the water is 16 cm/sec, or just under 14 km/day.  Last week's estimates where about 15 km/day.  So she is slowing down.  We have 1 more pitch adjustment left. After that, we start flying too steep for the attitude sensor.  Plan for the weekend is to continue flying east to about 14.5 W.  At that point we start the turn to the northeast towards the green circle of the pick up zone. This morning's distance to the Spanish EEZ is 170 km.  091106_ru27_alt_zoom

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